High Noon,
The higher the retained velocity, the less likely this is to happen--and a higher-BC bullet will often catch up to or surpass a typical flat-based spitzer in velocity at 300 yards, even when started as much as 300 fps slower. When started only 100 fps slower, it will catch up far sooner, and after it catches up will retain even more velocity as range increase. Along with expanding more reliably, it will drift less in the wind.
Have seen this over and over again over the years, and not just at 300+ yards. Will be posting a column on this very subject next week, with far more details. If you want to discuss the subject more after that, then will be happy to accommodate you.
Another thing that goes along the lines of less wind drift, less wind drift makes higher B.C. bullets more accurate, by default. They also drop less, which is what John is describing, again both details increasing the accuracy window of the target in question, not just terminal effects.
Going to heavier, longer, higher B.C. bullets also (if the dies are set up correctly for the bullets) can produce lower runout numbers upon loading, again making smaller, more accurate groups.
